I've been using this line on my local pitch for many years now. I'm wondering how common it is because a new show on the pitch that has only been working for a year has been using it and claims they came up with it themselves. The pitch regulars have generally had a policy of trying to keep our shows different from one another and the new guy doesn't seem to want to do this (admittedly, I'm claiming seniority, but don't believe they came up with the line themselves). Anyway, any thoughts on how common it is?

"This is what I do for a living" wait for no reaction "wow, you seem about as impressed as my parents."

I understand the concept is common but the wording is important. I also think they got it from me because they don't have the timing right. In my experience if they came up with it themselves they'd quite likely know how to make it work.